Charging device for grease guns



J. E. LATHAN CHARGING DEVICEFOR GREASE GUNS Filed June 19, 1922 Patented Sept. 9, 1924.

JULIUS nnwann 1.1M, or saw 1" DEVICE FOR GSE GUNS.

Application filed June 19, 1922. Serial No. 589,226.

To all whom it may concern:

Be it known that I, JULIUS EDWARD 'LATHAN, a citizen of the United States, and resident of city and count of San Francisco and State of California, have invented a new and useful Charging Device for Grease Guns, of which the following is a specification.

The present invention, while relating in general to lubricating equipment, has reference more particularly to a charging device for grease us which are commonly used as a part 0 such equipment.

The primary object of the invention is to provide a device especially ada' ted for use in garages or even individu owners to enable a charge of grease or the like lubricant to be forced into the grease gun in a tical workin convenient and quick manner so as to avoid the customary hand filling operation which.

has proven s0 unsatisfactory from a practical standpoint.

The further object of the invention is to provide a device which may be manufactured and sold tothe trade at a comparatively cheap priceso that not only will it find a ready market in repair shops, garages and other like places, where lubricant is handled on a lar e scale but alsoto individuals who woul use the device less frequently.

The invention ossesses further objects and features whic will ap ear as the description now proceeds wit reference to the accompanying drawing in which a pracembodiment of the dev1ce is shown for t e purpose of illustrating its application. In said drawing, Figure 1 is ayiew in side elevation of the complete device.

Figure 2 is a side view taken along the line 2-2 of Figure 1.

jecting ears 9 arranged on diametrically opposite sides of both the head and base adapted to receive the ends of-the rods 10 which are used for clamping the base and head to the cylinder. The lower ends of the rods 10 are fixed to the ears 9 of the base 6 b nuts 11 on the under side of the ears an locking nuts 12 on the opposite side of the ears. The ears on the head 7 are slotted to receive the upper ends of the rods 10 and the wing nuts 13 on the upper extremities of the rods 10 are used for fixing the rods to the ears as well as roducing a clampin effect by drawing the base 6 and the head tightly down over the openends of the cylinder. When the cylinder is to be filled the wing nuts 13 are loosened sothat the rods 10 may be slipped out of the slots in the ears 9 of the. head 7 so that the head 7 may be removed.

The base 6 is preferably cast or otherwise made with a web 14 terminating in a T headed plate 15 which may be used asa convenient means for attaching or mounting the device to a stand or other suitable supporting structure 16. The web'la is further made with a pair of spaced collars 17 co-axially arranged, throu h which the plunger rod 18 extends wit freedom and reciprocation. The plunger rod 18 enters the cylinder 5 through an opening 19 in the base 6 and carries a plunger 20 which has a tight fit with the diameter of the cylinder and is, of course, provided with the customary packing to prevent leakage.

he collars 17 practically rovide a guide for the plunger rod 18 and a 0 add rigidity to the structure which is, of course, desirable, due to the use required of the device. Pivotally connected on the forward end of the web 14; are a pair of links 23, the opposite ends of which being in turn pivotally connected as at 24 to the end of a short lever 25, the outer extremity of which is made with a nose 26 adapted to engage the flat surface on the under side of each of the The lever arrangement therefore, is

adapted to im art a progressive lifting ac tion or upwar thrust to the plunger 20 by i the spaced stepped relation of the flanges 27 on the plunger rod 18 so that the plunger s end or the gun has been removed and when the lubricant is forced through the pipe it Will fill the entire area of the un and as the filling action takes place t e gun is raised upwardly on the pipe and when the open end of the gun reac es the open end of the pipe, the gun will have been filled. It is then ready for use. Due to the large quantity of lubricant contained in the cylinder and the forceful efiect of the plunger, the gun will be filled very quick] and with very ittle efiort on the part of t e operator actuating the lever.

The size of the grease gun to be filled makes no difierence so long as it is not smaller than the pipe 30, since it must telescope within the pipe to realize the best results.

'When the Whole of the lubricant has been discharged from the cylinder and the cylinder is to be filled, a pin or the like 31 is encased chase so that the plunger -may be pulled down to leave the inside area of the cylinder unobstructed to receive a re-fill of lubricant.

ll claim:

1. In a grease gun filler, a bracket adapted for securing to a support, a cylindrical grease container mounted at one end on the bracket and having a discharge opening at the opposite end, a piston Within the cylinder With a rod extending therefrom through the bracket and being guided in spaced bearings on the bracket, a hand lever pivotally supported from. the bracket adapted to engage the rod between the bearings for forcing the rod and piston into the cylinder upon operating the lever.

2. In a grease gun filler, a bracket adapted for securing to a support, a cylindricalgrease container mounted at one end on the bracket and having a discharge openin at the opposite end, a piston Within the cy inder With a rod extending therefrom and past the bracket, a bearing on the bracket slidably supporting the rod, a hand lever suspended on a link pivotally secured to the racket and adapted to engage the rod adjacent the bearing for forcibly moving the rod and iston in the cylinder the link permittin t e lever to be moved bodily from the ME for disengagement.

. JULIUS nnvvaen inert-ran 

